An Amethyst Spear is the second strongest spear (first being Magma Spear that can be crafted with Amethysts and Sticks. They work best in Omberland. The spear tip is sharp and can produce nausia. It can destroy any armor.
Amethyst Spears have 120 uses and are simply used to hit mobs. When in the regular overworld, they deal 3 1/2 <3. However, when in Omberland, they deal 7 <3 and 5 <2 when 2/3 damaged. They can stack up to 16. When the player hits any mob (including Herobrine (boss), witches, Galactic Creepers, Diamond Golems and Sun Long) it will give an OTK.